THORLABS Blueline Series User manual

Operation Manual
Thorlabs Blueline™ Series
Thermoelectric Temperature Controller
TED200
2006

Version:2.23
Date: 21.06.2006
Copyright©2006, Thorlabs GmbH, Germany

Contents page
1General Information 1
1.1 At a Glance 1
1.1.1 General remarks 1
1.1.2 Protections for the TEC element 3
1.2 Safety 4
1.3 Ordering codes and Accessories 6
2Getting Started 7
2.1 Unpacking 7
2.2 Preparation 7
2.3 Preparation 8
2.3.1 Operating elements on front panel 8
2.3.2 Operating elements on rear panel 9
2.4 Starting up 10
3Operating the TED200 11
3.1 Connecting components 11
3.1.1 Connecting the TEC element 12
3.1.2 Control LED for TEC ON mode 13
3.1.3 Connecting a temperature sensor 13
3.2 Operating the temperature controller 17
3.3 Setting the TEC current limit "ILIM" 18
3.4 Adjusting the temperature control loop 19
3.5 Analog tuning of the temperature 21
3.6 Analog temperature control output 22
3.7 Over-temperature-protection of the TED200 22
4Maintenance and Repair 23
4.1 Maintenance 23
4.2 Line Voltage Setting 24
4.3 Replacing the mains fuse 26
4.4 Internal Fuse Replacement 27
4.5 Calibrating the temperature sensor 28
4.6 Switching off the I-share of the temperature control loop 29
4.7 Troubleshooting 31
5Appendix 33
5.1 Warranty 33
5.2 Certifications and compliances 34
5.3 Technical data 36
5.4 Thorlabs “End of Life” policy (WEEE) 38

5.4.1 Waste treatment on your own responsibility 38
5.4.2 Ecological background 39
5.5 List of acronyms 40
5.6 List of figures 41
5.7 Addresses 42

We aim to develop and produce the best solution for your application in the
field of optical measurement technique. To help us to come up to your
expectations and develop our products permanently we need your ideas and
suggestions. Therefore, please let us know about possible criticism or ideas.
We and our international partners are looking forward to hearing from you.
Thorlabs GmbH
This part of the instruction manual contains specific information on how to operate a
temperature module TED200. A general description is followed by explanations of
how to operate the unit manually.
Attention
This manual contains “WARNINGS” and “ATTENTION” label in this
form, to indicate dangers for persons or possible damage of equip-
ment.
Please read these advises carefully!
NOTE
This manual also contains “NOTES” and “HINTS” written in this form.

1.1 At a Glance
Temperature controller TED200 / page 1
1 General Information
1.1 At a Glance
1.1.1 General remarks
The thermoelectric Temperature Controller TED200 by Thorlabs GmbH is an
extremely precise temperature controller for laser diodes and detectors.
The TED200 is excellently suited for:
•wavelength stabilization of laser diodes
•noise reduction of detectors
•wavelength tuning by regulating the temperature
•modulation of wavelength by tuning the temperature
The unit is easy to use due to the clearly arranged operating elements on the front
panel. The operating parameters are shown by an illuminated 41/2-digit LCD display,
the measurement value shown is selected via keys.
The gain (P-share) the integral share and the differential share of the PID
temperature control loop can be set free and reproducible.
Different temperature sensors can be used with the temperature controller TED200
(thermistor, or temperature IC sensors: AD 590, AD592, LM135, LM 335). With a
thermistor the temperature display is shown as resistance value in kΩ, if the TED200
is operated with a temperature sensor IC the temperature is shown in °C.
The output for the TEC current can be switched on or off via key from the front panel.
The temperature sensor and the TEC element are connected by a 9-pin D-sub plug
at the rear of the unit.
At the output jack a control signal is available to drive an external LED to indicate
TEC ON mode when the TEC current loop is activated.

1.1 At a Glance
Temperature controller TED200 / page 2
The set value of the temperature can be changed with a knob at the front panel or via
an analog input at the rear of the unit.
An analog voltage proportional to the actual value of the temperature is available at
the rear of the unit for monitoring purposes.
The unit has been designed for safe operation with environmental temperatures of
more than 40 °C provided that a free air circulation through the ventilation slots at the
rear and at both sides of the unit is maintained.
In case of overheating caused by too high environmental temperatures or closed
ventilation slots the unit automatically switches the output off to avoid damages.
The LED "OTP" (over-temperature-protection) indicates the over-temperature.
After temperature drop of about 10 °C the LED "OTP" extinguishes and the output
current can be switched on again by pressing the key "ON".
If an error occurs (OTP or OPEN) the corresponding LED lights up and a beeper
gives a short warning signal.
The installed mains filter and the careful shielding of the transformer provide a low
ripple at the output.
If laser diode mounts of the LDH series and the corresponding cables by Thorlabs
GmbH are used damages caused by wrong connections are impossible.

1.1 At a Glance
Temperature controller TED200 / page 3
1.1.2 Protections for the TEC element
To protect the connected TEC element the temperature control system TED200
includes the following protective circuits:
•Limit of the TEC current in all operating modes
Protection against thermal destruction.
•Protection of the sensor
Protection against use of incorrect temperature sensors / protection against line
interruption of the temperature sensor.
•Contact protection of the TEC element (open circuit)
Protection against cable damage, bad contact or TEC element with too high
resistance.
•Control LED for TEC current on
Protection against accidental turning off the cooling.
•Over-temperature protection
Protection against thermal failure of the module.
•Mains filter
Protection against line transients or interference’s.
•Line failure protection
After turning on or in case of power failure or line damage the temperature control
must explicitly be switched on anew since it cannot be taken for granted that all
components of the measurement set-up are still working faultlessly.

1.2 Safety
Temperature controller TED200 / page 4
1.2 Safety
Attention 
All statements regarding safety of operation and technical data in
this instruction manual will only apply when the unit is operated
correctly.
Before applying power to your TED200 system make sure that the
protective conductor of the 3 conductor mains power cord is cor-
rectly connected to the protective earth contact of the socket outlet!
Improper grounding can cause electric shock with damages to your
health or even death!
Also make sure that the line voltage setting marked on the rear panel
agrees with your local supply and that the corresponding fuses are
inserted. If not, please have a service technician change the voltage
(see section 4.2).
Changing of the mains fuse can be done by the customer (see
section 4.3).
The unit must only be operated with duly shielded connection cables.
Only with written consent from Thorlabs GmbH may changes to
single components be carried out or components not supplied by
Thorlabs GmbH be used.
This precision device is only dispatchable if duly packed into the
complete original packaging including the plastic form parts. If
necessary, ask for a replacement package.
Attention 